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Fencer Intel
medium 5.0

CVE-2015-3148 json

cURL and libcurl 7.10.6 through 7.41.0 do not properly re-use authenticated Negotiate connections, which allows remote attackers to connect…

published 2015-04-24 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-3229

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.1%
EPSS 14.1% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

cURL and libcurl 7.10.6 through 7.41.0 do not properly re-use authenticated Negotiate connections, which allows remote attackers to connect as other users via a request.

Patch / fix

  • haxx curl 7.42.0
  • haxx libcurl 7.42.0
  • curl Debian 14, Debian 13, Debian 12 7.42.0-1

debian advisories DEBIAN-CVE-2015-3148

  • curl Ubuntu 14.04 LTS 7.35.0-1ubuntu2.5

ubuntu advisories UBUNTU-CVE-2015-3148

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • curl RHEL 7 7.29.0-25.el7
  • libcurl RHEL 7 7.29.0-25.el7
  • curl RHEL 6 7.19.7-46.el6
  • libcurl RHEL 6 7.19.7-46.el6

red hat advisories RHSA-2015:2159RHSA-2015:1254

  • curl SLES for SAP 12, SLES 12, SLED 12 +1 more 7.37.0-15.1

suse advisories SUSE-SU-2015:0990-1

  • curl openSUSE Tumbleweed 7.51.0-1.1

opensuse advisories openSUSE-SU-2024:10303-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-3148 updated cvss 4.0

curl: Negotiate not treated as connection-oriented

  • Red Hat Ceph Storage 1.2 curl Red Hat Enterprise Linux 5 curl
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Virtualization 3 mingw-virt-viewer, mingw32-virt-viewer, mingw64-virt-viewer
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client (v. 7) curl 7.29.0-25.el7, libcurl 7.29.0-25.el7 Red Hat Enterprise Linux Client Optional (v. 7) libcurl-devel 7.29.0-25.el7, curl-debuginfo 7.29.0-25.el7 Red Hat Enterprise Linux ComputeNode (v. 7) curl 7.29.0-25.el7, libcurl 7.29.0-25.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libcurl-devel 7.29.0-25.el7, curl-debuginfo 7.29.0-25.el7
    fixed: vendor fix RHSA-2015:2159
  • Red Hat Enterprise Linux Desktop (v. 6) curl 7.19.7-46.el6, libcurl 7.19.7-46.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) libcurl-devel 7.19.7-46.el6, curl-debuginfo 7.19.7-46.el6 Red Hat Enterprise Linux HPC Node (v. 6) curl 7.19.7-46.el6, libcurl 7.19.7-46.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) libcurl-devel 7.19.7-46.el6, curl-debuginfo 7.19.7-46.el6 Red Hat Enterprise Linux Server (v. 6) curl 7.19.7-46.el6, libcurl 7.19.7-46.el6
    fixed: vendor fix RHSA-2015:1254
  • Red Hat Enterprise Linux Server (v. 7) curl 7.29.0-25.el7, libcurl 7.29.0-25.el7
    fixed: vendor fix RHSA-2015:2159
  • Red Hat Enterprise Linux Workstation (v. 6) curl 7.19.7-46.el6, libcurl 7.19.7-46.el6
    fixed: vendor fix RHSA-2015:1254
  • Red Hat Enterprise Linux Workstation (v. 7) curl 7.29.0-25.el7, libcurl 7.29.0-25.el7
    fixed: vendor fix RHSA-2015:2159

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

14.15% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Improve affected version range and add fix versions.